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C&K COMPONENTS 21125 Mains Power Switch

The C&K COMPONENTS NE-18 series mains/power switches are versatile components designed for a wide range of applications, including consumer electronics, audio equipment, and digital products. These switches offer various contact configurations and mounting options, catering to diverse design requirements. They are RoHS compliant and built with durable materials like thermoplastic polyester and silver-nickel alloy contacts, ensuring reliable performance and longevity. The switches are available with different mechanical functions and button options, allowing for customization to meet specific application needs. The NE-18 series is a dependable solution for power switching in numerous industrial and consumer applications.

Authorized Distributors
Source:DigiKey
Part No:21125
Stock:120
Inv Date:06-15-2026
Price: Unit price: $0.68
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Part No:21125
Stock:0
Inv Date:06-15-2026
Price: Unit price: $0.67
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Part No:21125
Stock:38
Inv Date:06-15-2026
Price: Unit price: $0.8081
Buy/RFQ:
Part No:21125
Stock:38
Inv Date:06-15-2026
Price: Unit price: $0.8081
Buy/RFQ:

C&K COMPONENTS 21125 Mains Power Switch Specifications:

  • Power Contact Switching Power Max AC/DC (NE18): 1500/100 W
  • Power Contact Switching Power Max AC/DC (NE18CTII): 1000/100 W
  • Power Contact Switching Power Max AC (Inductive cos w =0.6) (NE18): 900W
  • Power Contact Switching Power Max AC (Inductive cos w =0.6) (NE18CTII): 600W
  • Switching Voltage Max AC/DC: 250/100V
  • Switching Current Max AC/DC (NE18): 6 A / 1 A
  • Switching Current Max AC/DC (NE18CTII): 4 A / 1 A
  • Inrush Current Max AC: NE18: 36 A, NE18CTII: 64 A
  • Dielectric Strength (50 Hz, 1 min.): 2000 V
  • Operating Life at Max Load and Max Inrush Current: 10 operations
  • Contact Resistance (Initial): 50mΩ
  • Contact Resistance (After 10 operations): 70mΩ
  • Insulation Resistance: >10 Ω (chassis – nearest contact), >10 Ω (mains contact – mains contact), >10 Ω (mains contact – mains contact after 10 operations)
  • Low Voltage Contact Switching Power Max: 12W
  • Low Voltage Contact Switching Voltage Max: 24V
  • Low Voltage Contact Switching Current Max: 0.5A
  • Total Travel: 4.7mm (0.185 inch)
  • Latching Travel: 3.3mm (0.130 inch)
  • Operating Force (Without Auxiliary Low Voltage Contacts) (NE18): 7N (700 grams)
  • Operating Force (Without Auxiliary Low Voltage Contacts) (NE18CTII): 9.5N (950 grams)
  • Operating Force (With Auxiliary Low Voltage Contacts) (NE18): 8N (800 grams)
  • Operating Force (With Auxiliary Low Voltage Contacts) (NE18CTII): 11N (1100 grams)
  • Sealing: Dust proof
  • Housing Actuator and Terminal Board: Thermoplastic polyester (UL 94V-0)
  • Movable Contact: Silver nickel alloy, silver plated
  • Fixed Contacts: Silver nickel alloy, silver plated
  • Common Contacts and Terminals: Copper alloy, silver plated
  • Return Spring: Music wire

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C&K COMPONENTS

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